Will "Sell in May" Turn Out OK?

The market's next move may determine which way we go next: summer swoon or continuing rally.

Throughout each phase of the bull market, whenever the bears seemed to get the upper hand, something happened to crush their spirits. Whether it was a new round of quantitative easing by the Federal Reserve or a simple bullish technical reversal, fighting the trend was the wrong plan.

Then came last week: After a surge to new all-time highs and subsequent failure to hold there, it looked as if the bears were giving it another go. Yet the Standard & Poor's 500 shows little net change since then, as it formed a chart...